Symfony\Polyfill\Mbstring

Mbstring::mb_strwidth │ public static │ CF7 1.0

Метод класса: Mbstring{}

Хуков нет.

Возвращает

null. Ничего (null).

Использование

$result = Mbstring::mb_strwidth( $s, $encoding );

$s(обязательный)

.

$encoding

.
По умолчанию: null

Код Mbstring::mb_strwidth() Mbstring::mb strwidth ^{CF7 6.2.4.1}

public static function mb_strwidth($s, $encoding = null)
{
    $encoding = self::getEncoding($encoding);
    static $wideChars = null;
    if (null === $wideChars) {
        $wideChars = self::getData('eastAsianWidthRegexp');
    }

    if ('UTF-8' !== $encoding) {
        $s = self::iconv($encoding, 'UTF-8', $s);
    } elseif (!preg_match('//u', $s)) {
        // Each maximal subpart of an ill-formed sequence is one column wide
        return preg_match_all(self::UTF8_CHAR_REGEX, $s) + preg_match_all($wideChars, self::scrubUtf8($s));
    }

    $s = preg_replace($wideChars, '', $s, -1, $wide);

    return ($wide << 1) + iconv_strlen($s, 'UTF-8');
}